I'm getting ready to build a slow build kit to quick build status at Synergy in Eugene, OR in September.
This is not the lowest cost approach nor is it necessarily the quickest. I could order a QB fuselage, but as you know they are 3-4 months out (published lead time) but in reality probably somewhat more.
For me, the reasons are multiple. One - I had the most fun I have had in years building the empennage and tail cone at Synergy back in May. Two - the quality of the build exceeded anything I imagined I could do. The folks at Synergy held me to high standards and we achieved that. I expect the fuselage will be similar - and exceed what the Filipinos achieve - which is pretty good. Three - I would like to install floor insulation, which you cannot order as an option on a QB. Four - my spouse is actually the one who pushed me in this direction. She helped for a couple of days and observed how much fun I was having. She then encouraged me to return to build the fuselage at Synergy. So how could I refuse?
As an engineer with a Master's in Business - she constantly reminds me of the adage - Quality, Cost, Speed - pick any two. I'm all about the quality, she is all about getting this done before I'm too old to fly it. So, it's going to cost a bit more.
Everyone has a different situation and motivation. I highly recommend Synergy if you can afford it!